Software Defined Network (SDN) – Present, Past and Future.
Before we move ahead let us understand the 3 generations of networking. The first generation of networking was primarily dominated by mainframes. Organizations invested a lot of their money in proprietary protocols to connect their distributed offices. Second generation which we term as golden age was of personal and client server computing. The inflexibility of mainframes and rigid communication architecture propelled enterprises to move into client-server computing mode. TCP/IP was accepted as the universal communication protocol. Now that we are experiencing the disruptive change in mobility and cloud based computing models, the networking industry is all set to witness its third generation of programed network infrastructure. This transition has become crucial because we are observing the change in end user computing, with combinations of PCs, laptops, smartphones, tablets and special purpose devices connecting to applications located at different part of the globe. Hence it is...